Crinalium W.B.Crow, 1927

Holotype species: Crinalium endophyticum Crow

Original publication and holotype designation: Crow, W.B. (1927). Crinalium, a new genus of Cyanophyceae, and its bearing on the morphology of the group. Annals of Botany 41: 161-166.

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Description: Filamentous; filaments unbranched, irregularly waved or coiled, solitary or in microscopic clusters; trichomes without or with fine, diffluent and facultative sheaths, isopolar, more or less equally wide along the whole length or slightly narrowed to the ends, clearly and obligatory flattened from sides, on the crosswalls, nonmotile. Cells more or less isodiametric or slightly shorter or longer than wide, without aerotopes, with slightly granular and blue-green content. End cells widely rounded. Heterocytes and akinetes absent. Cell division transverse, the daughter cells grow more or less into the original size before the next division. Reproduction by hormogonia, which separate from the mother trichome without help of necridic cells, but sometimes with special separating discs. The type species grows endogloeic in the mucilage of subaerophytic Aphanocapsa (on wet rocks in England), one species known from pools in Antarctica, another from soil biotopes in the Netherlands. One species from India is unclear.

Information contributed by: J. Komárek. The most recent alteration to this page was made on 2023-03-03 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as neuter.

Most recent taxonomic treatment adopted: Strunecky, O., Ivanova, A.P. & Mares, J. (2023). An updated classification of cyanobacterial orders and families based on phylogenomic and polyphasic analysis (Review). Journal of Phycology 59(1): [1-40] 12-51.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

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M.D. Guiry in Guiry, M.D. & Guiry, G.M. 03 March 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 25 March 2023

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